Cornish semiconductor: Created page with "Negative resistance is when a device or material allows more current to flow as voltage across it is decreased, or vice versa, less current is passed with an increase in voltage. It's principle use to to create very high speed oscillators, in the microwave range. Some natural semiconductors also seem to have this capability, Cornish arsenopyrite and wolframite seem to occasionally. In a curve plot it looks like a reverse loop, it's hard to capture as it's ra..."

2026-06-27T22:54:45Z

Created page with "Negative resistance is when a device or material allows more current to flow as voltage across it is *decreased*, or vice versa, less current is passed with an *increase* in voltage. It's principle use to to create very high speed oscillators, in the microwave range. Some natural semiconductors also seem to have this capability, Cornish arsenopyrite and wolframite seem to occasionally. In a curve plot it looks like a reverse loop, it's hard to capture as it's ra..."

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Negative resistance is when a device or material allows more current to flow as voltage across it is *decreased*, or vice versa, less current is passed with an *increase* in voltage. It's principle use to to create very high speed oscillators, in the microwave range.

Some natural semiconductors also seem to have this capability, Cornish [[arsenopyrite]] and [[wolframite]] seem to occasionally. In a curve plot it looks like a reverse loop, it's hard to capture as it's rare.

[[File:NegResCurve.jpg|500px]][[File:Test.jpg|400px]]

This is potentially some negative resistance on a sample of arsenopyrite from Wheal Fortune, Gwennap.

Negative resistance - Revision history